Load test of raymond mill could be carried out after the no-load test is passed.

In addition to the no-load test requirements, the following requirements must be met:
(1) There should be no obvious vibration and abnormal noise. If it occurs, it must stop immediately, find out the reason, eliminate the fault, and re-test the mill again;
(2) The feeding position is correct, the discharging is normal, and the product size and output are in compliance with the requirements.
Both no-load test and load test are passed, the raymond mill could start up with feeding limestone.